Combined back pack and back rest



FIG. 1 is a front elevational view of a combined back pack and back rest showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof; shown in an alternate extended position;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a combined back pack and back rest, as shown and described. 